2x+y分之4x²-4xy+y²除以(4x²-y²)化简
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2x+y分之4x²-4xy+y²除以(4x²-y²)化简
2x+y分之4x²-4xy+y²除以(4x²-y²)化简
2x+y分之4x²-4xy+y²除以(4x²-y²)化简
2x+y分之4x²-4xy+y²除以(4x²-y²)
=【(2x-y)^2/(2x+y)】/【(2x+y)(2x-y)】
=(2x-y)/(2x+y)^2